APH Amphenol Corp.
Amphenol Corp. (APH) Institutional Ownership
What the institutions did with APH last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
Sign in or subscribeLargest holders
| Manager | Shares | % of reported |
|---|---|---|
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | 331.6M | 22.1% |
| BlackRock, Inc. | 101.3M | 6.8% |
| VANGUARD CAPITAL MANAGEMENT LLC | 80.3M | 5.4% |
| FMR LLC | 70.6M | 4.7% |
| STATE STREET CORP | 59.5M | 4.0% |
| Capital International Investors | 43.0M | 2.9% |
| JPMORGAN CHASE & CO | 39.2M | 2.6% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 35.7M | 2.4% |
| PRICE T ROWE ASSOCIATES INC /MD/ | 32.0M | 2.1% |
| GEODE CAPITAL MANAGEMENT, LLC | 31.1M | 2.1% |
| Capital Research Global Investors | 29.5M | 2.0% |
| MORGAN STANLEY | 20.6M | 1.4% |
| NORGES BANK | 19.2M | 1.3% |
| WELLINGTON MANAGEMENT GROUP LLP | 16.6M | 1.1% |
| BANK OF AMERICA CORP /DE/ | 16.2M | 1.1% |
| Nuveen, LLC | 15.1M | 1.0% |
| Bank of New York Mellon Corp | 14.6M | 1.0% |
| NORTHERN TRUST CORP | 13.5M | 0.9% |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 11.9M | 0.8% |
| GOLDMAN SACHS GROUP INC | 10.8M | 0.7% |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | 10.5M | 0.7% |
| ROYAL BANK OF CANADA | 9.8M | 0.7% |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 9.7M | 0.6% |
| FRANKLIN RESOURCES INC | 9.4M | 0.6% |
| JENNISON ASSOCIATES LLC | 9.2M | 0.6% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | Increased | 1.9M | 331.6M | +329.7M |
| JPMORGAN CHASE & CO | Reduced | 49.3M | 39.2M | -10.1M |
| FMR LLC | Reduced | 79.5M | 70.6M | -8.9M |
| Capital International Investors | Increased | 35.3M | 43.0M | +7.7M |
| PRICE T ROWE ASSOCIATES INC /MD/ | Increased | 26.2M | 32.0M | +5.8M |
| BANK OF AMERICA CORP /DE/ | Reduced | 20.7M | 16.2M | -4.5M |
| AMERIPRISE FINANCIAL INC | Increased | 1.9M | 5.9M | +3.9M |
| AXIOM INVESTORS LLC /DE | Reduced | 4.3M | 383.5K | -3.9M |
| Invesco Ltd. | Reduced | 11.8M | 8.3M | -3.5M |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | Reduced | 14.0M | 10.5M | -3.4M |
| MORGAN STANLEY | Increased | 17.5M | 20.6M | +3.1M |
| Rathbones Group PLC | Reduced | 6.2M | 3.2M | -3.0M |
| Capital Research Global Investors | Increased | 26.6M | 29.5M | +2.9M |
| VOYA INVESTMENT MANAGEMENT LLC | Reduced | 4.7M | 1.9M | -2.8M |
| TD Asset Management Inc | Reduced | 3.6M | 1.4M | -2.2M |
| MARSHALL WACE, LLP | Reduced | 2.3M | 109.2K | -2.2M |
| STATE STREET CORP | Increased | 57.4M | 59.5M | +2.1M |
| Egerton Capital (UK) LLP | Increased | 2.9M | 4.9M | +2.0M |
| ALLIANCEBERNSTEIN L.P. | Increased | 4.1M | 6.1M | +2.0M |
| Nuveen, LLC | Increased | 13.1M | 15.1M | +1.9M |
| Bank of New York Mellon Corp | Reduced | 16.3M | 14.6M | -1.7M |
| Mawer Investment Management Ltd. | Reduced | 4.0M | 2.4M | -1.6M |
| WELLINGTON MANAGEMENT GROUP LLP | Increased | 15.0M | 16.6M | +1.6M |
| AMERICAN CENTURY COMPANIES INC | Increased | 5.3M | 6.9M | +1.6M |
| Swedbank AB | Increased | 3.2M | 4.8M | +1.5M |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.